Teak commands a premium price in the timber market due to its natural properties – but not all teak is created equal. Teak is graded by trained graders into one of three categories: A, B or C. Premium teak outdoor furniture is manufactured with Grade A teak coming from the center of the log called the heartwood. It is free of knots, sap wood and cracks, and has tight, straight grain. Furniture made from lower grades of teak will not withstand outdoor exposure as long, can crack or rot over time and is more likely to be damaged by pests.
The term Grade A is used very liberally and means different things to different brands. Makers that adhere to using the highest-quality materials are able to provide complete and transparent information about materials, sources and performance.